functionalitiesprimary
FunctionalitiesPrimary refers to the core set of features that constitute the essential behavior of a software system or product. These primary functionalities are the ones that deliver the main value proposition to users and form the basis for further development.
In requirement engineering, FunctionalitiesPrimary are identified through stakeholder interviews and use‑case analysis. They are documented as
During system design, these core functionalities influence architecture decisions. Core modules such as authentication, data persistence,
FunctionalitiesPrimary also serve as gatekeepers for quality metrics. Acceptance tests are defined around these features, and
Secondary or optional functionalities build upon the foundation laid by the primary set. These may include
In product management, a clear distinction between primary and secondary functionalities aids prioritization and resource allocation.